6481579 has 4 divisors (see below), whose sum is σ = 6980176. Its totient is φ = 5982984.

The previous prime is 6481571. The next prime is 6481583. The reversal of 6481579 is 9751846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6481579 - 2³ = 6481571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6481571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249279 + ... + 249304.

It is an arithmetic number, because the mean of its divisors is an integer number (1745044).

Almost surely, 2^6481579 is an apocalyptic number.

6481579 is a deficient number, since it is larger than the sum of its proper divisors (498597).

6481579 is a wasteful number, since it uses less digits than its factorization.

6481579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498596.

The product of its digits is 60480, while the sum is 40.

The square root of 6481579 is about 2545.8945382714. The cubic root of 6481579 is about 186.4490920908.

The spelling of 6481579 in words is "six million, four hundred eighty-one thousand, five hundred seventy-nine".